Sometimes, only some of a female’s cells have three X chromosomes, while the others will have the usual two X chromosomes. This is a form of triple X syndrome called mosaicism (or 46,XX/47,XXX), notes the National Organization for Rare Disorders. (2) A related condition, known asTurne...
(a) Turner's Syndrome (b) Down's Syndrome (c) Trisomy 21 (d) Klinefelter’s Syndrome View Solution Conditions of a karyotype2n±1and2n±2are called View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions
(A) What is the karyotype of an individual with Down syndrome? (B) Klinefelter syndrome? (C) Turner syndrome? What is nondisjunction and what might result from it? Which nondisjunction disorder must be due to an event in sperm development? a. XO b. XXX c. xxy d. XYY e. Trisomy 21 ...
Down syndrome is caused by a random error in cell division that results in the presence of an extra copy of chromosome 21. The type of error is callednondisjunction(pronounced non-dis-JUHNGK-shuhn). What is Trisomy in biology? (TRY-soh-mee) The presence of an extra chromosome in some o...
Down syndrome is a genetic disorder that causes shorter stature, a flatter face, and slowed cognitive development. It is caused by an extra copy of a chromosome, a condition known as trisomy. Down syndrome is the most common trisomy disorder....
“They don’t know about these conditions, and their doctors don’t know about them either, but they are much more common than Down syndrome.” XXY occurs in about one of every 650 male births; XXX affects one in 1,000 female births, and XYY one in 1,000 males. “I like to say ...
Why is NIPT considered a noninvasive test? NIPT, also known as noninvasive prenatal screening (NIPS), is a screening test for evaluating the risk that the fetus will be born with certain genetic abnormalities or chromosomal disorders, such as Down syndrome (trisomy 21), Patau syndrome (trisomy...
What gene is affected by Duchenne muscular dystrophy? Is autism an autosomal recessive gene? What chromosome has the genetic mutation for Huntington's disease? In humans, what are chromosome pairs 1 through 22 called? What is XYY syndrome? Changes in chromosome number are usually damaging for the...
What would the sex chromosomes of a male with Klinefelter Syndrome look like? a. XO b. XX c. XY d. XXY e. OY What is nondisjunction? When does it occur? What is a chromosome that is not directly involved in determining sex as opposed to a sex chromosome called? Karyotype displays: ...